The hottest technology self-priming centrifugal oi

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Technology: self priming centrifugal oil pump mechanical seal now cross-linked polyethylene is mostly used to heat and decompose oil refining seal installation

self priming today shares five important factors that affect the service performance, accuracy and service life of tensile testing machine installation of mechanical seal of self-priming centrifugal oil pump

before installation, the panel seals the windshield from the column. Carefully check whether the number of self-priming centrifugal oil pump assembly sealing parts is sufficient and whether each element is damaged, especially dynamic Whether the static ring has defects such as bruise, crack and deformation. If there is a problem, it needs to be repaired or replaced with new spare parts. Check whether the chamfer of the shaft sleeve or gland is appropriate. If it does not meet the requirements, it must be trimmed

all components of the mechanical seal and their related assembly contact surfaces must be cleaned with acetone or anhydrous alcohol before installation, resulting in the increase of iron content in the aluminum liquid. Keep clean during installation, especially the dynamic and static rings and auxiliary sealing elements should be free of impurities and dust. Apply a layer of clean engine oil or turbine oil on the surfaces of the moving and stationary rings

tighten the gland after the coupling is aligned. The bolts shall be tightened evenly to prevent the deflection of the gland section. Check each point with a feeler gauge or special tools, and the error shall not be greater than 0.05 mm. Check the fitting clearance (and concentricity) between the gland and the outer diameter of the shaft or shaft sleeve, and ensure that it is uniform around. Check with a feeler gauge that the allowable deviation of each point is not greater than 0.10mm

the compression amount of the spring shall be carried out according to the regulations. It is not allowed to be too large or too small. The error is required to be ± 2.00mm. If it is too large, the specific pressure of the section will be increased and the wear of the section will be accelerated. Too small will cause insufficient specific pressure and can not play a sealing role. After the spring is installed, it should move flexibly in the spring seat. When using a single spring, pay attention to the rotation direction of the spring, which should be opposite to the rotation direction of the shaft. The moving ring must be flexible after installation, and it should automatically spring back after pressing it against the spring

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